Arbitrary Code Execution in Simple CAPTCHA with Cloudflare Turnstile Plugin for WordPress
CVE-2026-85116

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Simple Captcha With Cloudflare Turnstile
Vendor
CVE Published:
11 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-85116?

The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin is vulnerable due to how it processes shortcode parsing across the entire rendered Contact Form 7 form. This vulnerability allows unauthenticated users to execute arbitrary shortcodes that have been registered on the site, potentially leading to malicious code execution and compromising the site’s integrity.

Affected Version(s)

Simple CAPTCHA with Cloudflare Turnstile 1.2.2 < 1.42.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-85116 - Proof of Concept

References

https://wpscan.com/vulnerability/7bab04a6-59ef-4b4f-a374-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jakub Herman
WPScan
.